RELENTLESS UTI

Help!! I've had either three separate UTIs or one impossible to kill one. I have been on antibiotics three times now all within the span of a month and a half, (one week on, one off antibiotics) this last round being a different antibiotic.

Yes. My SO and I still enjoy pregnant sex, and I was and pee after every time, but I still cant shake this UTI... do I give up on sex all together or pray this last round on antibiotics work?

He is also going to get tested to make sure hes not just passing an infection right back to me once I clear it.

Anyone else have this problem? Any ones else have success "curing" it before?